✨ feat(layout): remove unused font imports

The changes remove the unused Geist and Geist_Mono font imports from the
layout.tsx file. This simplifies the code and reduces the overall bundle
size of the application.

app/layout.tsx

@@ -1,16 +1,6 @@
 import type { Metadata } from "next";
-import { Geist, Geist_Mono } from "next/font/google";
 import "./globals.css";
 
-const geistSans = Geist({
-  variable: "--font-geist-sans",
-  subsets: ["latin"],
-});
-
-const geistMono = Geist_Mono({
-  variable: "--font-geist-mono",
-  subsets: ["latin"],
-});
 
 export const metadata: Metadata = {
   title: 'AderKI Blog',